Average Co-Inventor Count = 3.33
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Taiwan Hopax Chemicals Mfg. Co., Ltd. (5 from 21 patents)
5 patents:
1. D928872 - Note paper pad
2. D925648 - Note paper pad
3. D860309 - Note paper pad
4. D860308 - Note paper pad
5. D855695 - Note paper pad